Overview Includes 2 x sets or reusable self adhesive gel refills. 1 x CR2032 lithium battery. Up to 100 uses. Only for use with Evomed PAINmate. How To Replace 1. To remove the used gel pad carefully roll the gel upwards with your fingers until the entire pad has lifted off. Note: Do not use fingernails or tools as they can damage the unit. 2. Repeat on other side. 3. Clean the device with a drop of water on your finger to remove left over residue. Allow to dry. 4. Place new pads onto the unit.